Home / 5,199.40-7,799.10-4,891.60

Finding the Fourth Proportional to 5,199.40, 7,799.10 and 4,891.60

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Solution

The fourth proportional to 5,199.40, 7,799.10 and 4,891.60 is: 7,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.40 : 7,799.10 = 4,891.60 : x
  2. Step 2: Convert to fraction form
    5,199.40/7,799.10 = 4,891.60/x
  3. Step 3: Cross multiply
    5,199.40x = 7,799.10 × 4,891.60
  4. Step 4: Simplify right side
    5,199.40x = 38,150,077.56
  5. Step 5: Solve for x
    x = 38,150,077.56/5,199.40
  6. Step 6: Final answer
    x = 7,337.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.